The sun is high enough in the summer that vertical collectors can be stagnated without any problem (at least in my experience).
Vertical collectors do well in the winter with the low sun, and are inefficient in the summer with high sun -- which seems to be what you want.
If going vertical is not enough, a fixed overhang could be placed above the collectors to shade part of the collector for the high summer sun.
GaryGary gary@BuildItSolar.com www.BuildItSolar.com
Yes, some of what you suggest would be great, and I'll be looking out for the opportunity for those in any new property. I've explicitly taken a note of the overhang idea!
At the moment I have the problem that my roof surfaces face east and west and that if I depart from my roof line and/or use the vertical surfaces I'll get into planning and covenant problems.
So I'm after inherently safe system against overheating, if possible.
Rgds
Damon[ Parent ]
